{"id":"CVE-2024-46676","summary":"nfc: pn533: Add poll mod list filling check","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: Add poll mod list filling check\n\nIn case of im_protocols value is 1 and tm_protocols value is 0 this\ncombination successfully passes the check\n'if (!im_protocols && !tm_protocols)' in the nfc_start_poll().\nBut then after pn533_poll_create_mod_list() call in pn533_start_poll()\npoll mod list will remain empty and dev-\u003epoll_mod_count will remain 0\nwhich lead to division by zero.\n\nNormally no im protocol has value 1 in the mask, so this combination is\nnot expected by driver. But these protocol values actually come from\nuserspace via Netlink interface (NFC_CMD_START_POLL operation). So a\nbroken or malicious program may pass a message containing a \"bad\"\ncombination of protocol parameter values so that dev-\u003epoll_mod_count\nis not incremented inside pn533_poll_create_mod_list(), thus leading\nto division by zero.\nCall trace looks like:\nnfc_genl_start_poll()\n  nfc_start_poll()\n    -\u003estart_poll()\n    pn533_start_poll()\n\nAdd poll mod list filling check.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.","modified":"2026-04-02T12:19:18.199017Z","published":"2024-09-13T05:29:11.598Z","related":["SUSE-SU-2024:3551-1","SUSE-SU-2024:3553-1","SUSE-SU-2024:3559-1","SUSE-SU-2024:3561-1","SUSE-SU-2024:3564-1","SUSE-SU-2024:3566-1","SUSE-SU-2024:3569-1","SUSE-SU-2024:3587-1","SUSE-SU-2024:3591-1","SUSE-SU-2024:3592-1","SUSE-SU-2025:20073-1","SUSE-SU-2025:20077-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46676.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/56ad559cf6d87f250a8d203b555dfc3716afa946"},{"type":"WEB","url":"https://git.kernel.org/stable/c/64513d0e546a1f19e390f7e5eba3872bfcbdacf5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7535db0624a2dede374c42040808ad9a9101d723"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7ecd3dd4f8eecd3309432156ccfe24768e009ec4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8ddaea033de051ed61b39f6b69ad54a411172b33"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c5e05237444f32f6cfe5d907603a232c77a08b31"},{"type":"WEB","url":"https://git.kernel.org/stable/c/febccb39255f9df35527b88c953b2e0deae50e53"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46676.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-46676"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"dfccd0f580445d176acea174175b3e6518cc91f7"},{"fixed":"c5e05237444f32f6cfe5d907603a232c77a08b31"},{"fixed":"8ddaea033de051ed61b39f6b69ad54a411172b33"},{"fixed":"7535db0624a2dede374c42040808ad9a9101d723"},{"fixed":"7ecd3dd4f8eecd3309432156ccfe24768e009ec4"},{"fixed":"56ad559cf6d87f250a8d203b555dfc3716afa946"},{"fixed":"64513d0e546a1f19e390f7e5eba3872bfcbdacf5"},{"fixed":"febccb39255f9df35527b88c953b2e0deae50e53"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-46676.json"}}],"schema_version":"1.7.5"}